Belt clamp



* Oct.. 13, 1931.l E. c.

No'B'LE 1,82 7,327

BELT CLAMP Filed April 19, 1930 .llllll .ZE VII INVENTOR BYZ ATTORN EY ing the conformation Paenteapoct; 13, 1931 y UNITED STAT es ELMER o. NOBLE, or TULSA, oKLAHoMA,Ass1eNonor ONEFHALF froy minnie mitosis, i

rvor TULSA, OKLAHOMA,

lAppimua mea l April 19,

My'invention relates to belt fasteners and more particularly to clamps of `thatcharacter for connecting ends `of belting to form aV continuous bandthe principal objectof my invention beingv to provide a strong clamp for connecting the ends of heavy duty belts embodying meansfor obviating noise, slip,- page and wear incident to metal-to-metal contact'of steel clamps with 'steel pulleys.

l In'accomplishingthis and other objects of my invention, I have providedl improved v details of structure, they preferred form of whichk is illustratedl in the accompanyingr drawings wherein;

Fig. 1 is a'perspectiveview of a belt operably mountedondriving and drivenpul- 'leys and connected with a clamp embodying my invention. .y Y

Fig. 2 is a cross section of the clamp on the rline 2-2, Fig. 4, illustrating theV clamping plates secured in operable relationwith adn joining belt ends'.

Fig. 3 isa cross section ofthe clamp on the line 3-3`, Fig.v 4, particularly illustratmember to the curvature of a pulley. l f

Fig. 4 is a longitudinal sectionof the clamp on the line 44, Fig.'2. v j l Referring more in detail to the drawings: f 1 designates a motor and 2 a motor-shaft whereon is lixeda driving pulley v3, operably` connected through a belt 4 with adriven pulley 5. j i l In order to connect adjacent ends 6 and 7 of the belt I have provided an improved clamp' generallyy designated 8 and including'v curva-y face of the smallest pulley with which the clamp is intended 'to be used. 'Y

an inner plate 9 preferably having a An outer plate 10, including a body portion i ll'having a curvature complementarytothe curvature of the innerV plate 9, and preferably provided with extended inversely curved end portions 12 projecting beyond the ends of the inner plate, is adapted to overlie the belt ends on the side opposite the innerplate 9.

Mounted adjacent the inner plate for enaging the pulley rim is a cushioning pad'or filler 13 preferablyV formed of rubber or other vas illustrated in Fig. 3. f

Vof'a filler or cushioning resilient material Mid :having 'a b'dyiporl.

the ends*ofthey plate' 9. "Aligning openings" `16j.i-n"the cushion, 17

in the inner and outer plates'respecj tively,"and-19 inthe belt ends yareadapted to Vtion l14,7and'taperedendsfl projectin'gslightly-1y I` receive bolts 20 having' heads 21 preferably nuts l23 being vthreaded on the bolts for clamping the respective memberstogether and for drawing the heads 211into the pad 13 toqprev ent Contact of the bolt heads withthe pulley rim. l

In driving an apparatuswith a ends connectedwith Y applied tothe belt as-described, the body p'orbelt having 'tion of the cushioning VL,member in coming with a pulley'rim will as.- J ,i

into engagement sume a curvature similar to the pulley surface Due to the embedded heads in the cushioning member, only the resilient pad engages the pulleys, eliminating noise and ldanger of slippage. The outer inversely curved ends ofthe outer G5 l a clamp constructedand posities@ the boit l thereby v plate prevent abrupt curvatures in the belt,

hns prolonging the life and service of the elt.l f

If preferred, the cushioning pad or iiller maybe vulcanized or otherwise secured to the inner plate, or in some cases the filler may be used alone in conjunction V`with the outer plate if desired. Y y

What I claim and desire to secure by Letters Patent is: y

1." A belt fastener including an inner.`

curved plate,`

beyond the ends yof the inner plate,'a cushioning member on the concave face of the inner plate, and means and cushioning member together and .to the ends of a belt. v

2. Ina device of the character described for connecting the ends of belting, a curved inner plater overlying said ends, a relatively long outer plate overlying the opposite sides of said ends and'having a complementary an outer plate having a body*l lportion curved on the arc of the inner plate and having reversely curved ends projecting-9o -i l for securing the plates` i curved body portion and inversely curved end portions, a cushioning plate adjacent the inner curvature of and extending beyond the ends of the inner plate, and fastening means for securing said respective plates to the adjoining ends and having heads countersunk in the cushioning plates. d p Y Y 3. In combination With spaced pulleys and a belt adapted to run over said pulleys, means forvjoining the ends of the belt, including a curved inner plate overlying said ends, a relatively long outer plate overlying the opposite sides of said ends and having a complementary curved body portion and inversely curved end portions, a cushioning plate adjacent rthe inner curvature of the inner plate and having graduallytapered outer ends, and fastening means for securing said respective plates to the ends of the belt and having heads eountersunk in the cushioning plates.

In testimony whereof I affix my signature.

p ELMER C. NOBLE.` 

